The SMOK Stick AIO Starter Kit, measuring at 22mm in diameter, adopts the pen style design with a leak-proof built-in glass tank. It has a 1600 mAh integrated battery and the output of the device is based on the battery state and life. The system itself is designed as an all in one platform, with the Stick AIO coil system threading directly into the chassis. The built-in glass tank system has a 2ml tank capacity and a swivel top fill system. It also features a non-adjustable, discrete air intake system. Included in the device are two 0.23 ohm Stick AIO coils which provide an excellent balance between flavor, vapor, and efficient use of the battery. The SMOK Stick AIO Starter Kit is a convenient and ergonomic system that is perfect for all vapers!